Device for riveting half soles on pneumatic rubber tires



July 31, 1923. 1,463,732

. R. c. TURNER ET AL DEVICE FOR RIVETING HALF SOLES ON PNEUMATIC RUBBERTIRES Filed May 13, 1922 Fig.3

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ATTORNEY.

Patented July 31,. 1.923.

ia a RALFH C. TURNER AND EDWl-LEID '1. ALSTON, OF SEATTLE, FVASHINGTON;SAID TURNER ASSIGNGR TO SAID ALSEION.

DEVICE FOR RIVETING HALF SOLES ON PNEUIKATIC RUBBER TIRES.

Application filed May 13,

ToaZZ whom it may concern:

Be it known that we, RALPH O. TURNER and EDWARD T. ALSTON, citizens ofthe United States, and residents of Seattle, in the county of King andState of Washing ton, have invented a new and useful Device for RivetingHalf Soles on Pneumatic Rubber Tires, of which the following is aspecification.

Our invention relates to improvements in machines for riveting halfsoles on pneumatic rubber tires, and one of the objects of ourimprovements is to provide a machine which will retain the tires inconvenient place while the holes for the rivets are being punched.Another object of our improvements is to provide an anvil or last havingone area suited for upsetting rivets thereon and another area adaptedfor punching holes through the tire wallsthereon. Another object of ourimprovements is to provide an adjustable holder for the tires whilebeing riveted. And a further object of our improvements is to provide aclamp for pressing on the'washer while the rivet is being upset. i Y

We attain these objects with the mechanism illustrated in theaccompanying sheet of drawings, forming a part of this specification, inwhich Figure 1 is a'plan view of ourriveting machine, Fig. 2 is a sideelevation of Fig. 1,Fig. 3 is a'rear elevation of Fig. 2, and Fig. 4 isa sectional view of a tire half soled by our machine, drawn on a largerscale. a

Similar characters refer to similar parts throughout.

More particularly: The stand of the machine consists of base 5 and post6. On the rear of said post are two lugs 7, 7 having holes in line. Onthe right-hand side of base 5 as shown in Fig. 3 is lug 8 having a holetherein. From the top of post 6 extends upward and forward bracket 9having a horizontal hole therein. Clamping rod 10 is mounted forreciprocation in the holes in lugs 7. Said rod is bent over forward at11 and has a flattened end 12through which is vertical hole (Z12 smallerthan the rivet washers used. On rod 10 between lugs 7 is mounted setring 13. On the lower end of rod 10 is mounted set ring 1 1 having ahorizontal gudgeon thereon extending rearward. On rod 10 is mountedspiral spring 15 to react between lower lug 7 and set ring 1822. Serial110.58%),845.

13. Link 16 is pivoted in lug 8. Foot lever 17 is fulcrumed on thegudgeon on set ring Li and pivoted to link 16. Metal last or anvil 18 ismounted on horizontal axis or hinge joint by means of lugs 19 whichextend from the bottom thereoi and are iivoted to bracket 9. inset oi?lead or babbitt 20 is molded in a cavity in the'upper surface of anvil18 in the right-hand end of said anvil asone faces the machine inFig. 1. Anarm 23 is provided with spreading shank bars 21, 22 which arefastened to anvil 18. On the left hand side of pesto is lug 2% which hasa hole in which is mounted and fixed curved bracket rod25, which is alsoadjustably mounted in. lug 26, fastened to the lefthand side of arm 23,and retained in position by a set screw in said lug 26.

In Fig. 4 a pneumatic rubber tire is shown in cross section at A fromwhich the tread has been stripped. From another tire of same size therims have been removed and the half sole l3, thusprepared, is mountedover tire A as shown. Then rivets O with washers D are used to fastenthe half sole on the inner tire along the edges of said sole, as shown.It is the proper fastening of the sole on the tire that hitherto hasbeen found so difiicult and which our machine makes easy; lows: aregood, while its walls may be ruptured. Tire B is chosen because itswalls aresound while its rims may be'cut. t is understood thatused'tires are made to serve our pur pose. Said tires are placedtogether as shown in Fi i and placed on the machine as shown in dottedoutline at A, B, Fig. 1, with anvil 18 inserted in tire A, bracket 9 andshank bars 21 and 22 easily being accommodated between the rims of thetire. A punch which removes a piece of rubber and fabric from the wallsof A and 13 large enough to permit the insertion of rivets C from withinis used to make several rivet holes through said walls as they lie overlead insert 20. Then rivets are placed in said holes with their headswithin tire A. On each 01" said rivets is placed a washer D and, one ata time, they are placed beneath hole a" and bar end 12' is forced downon said washer by pressure obtained by forcing down lever 17 with afoot. This pressure should be sufficient to imbed the rivet head in thewall of tire A and the rivet washer To do this we proceed as fol-' TireA is chosen becauseits rims in the wall of sole B. With a foot on lever17 to maintain said pressure the end of the rivet is upset by a blow ona punch.

inserted in hole a. Then the foot is removed from said lever and spring15 forces clamp 11 upward and the tire is moved toward the left and theriveting completed while the rivet head rests on the hard part of anvil18. In this way the riveting pro ceeds till all of the needed rivets areplaced in one side of the tire when it is removed, turned over, andagain placed on anvil 18 and arm 23 and the rivets placed in its otherside as described. By elevating and depressing arm 23 anvil 18 is causedto turn beneath hole (0. Thus the adjustment of said arm is made to mosteasily bring the part of the tire in which rivets are to be placedbeneath said hole.

Having thus disclosed our invention, what we claim is new and desire tosecure by Letters Patent is,

1. An anvil of a rubber tireshoe riveting machine having a hard-metalsurface area adapted to support a rivet when being upset and also havinga soft-metal surface area adapted to receive the sharp end of arivethole punch.

2. In a rubber tire-shoe rive-ting machine in combination, an anviladapted to occupy the interior of a pneumatic rubber tire shoe andsupport arivet through the walls of said shoe, a downpressor adapted tobear on the washer of said rivet when on said shoe and further adaptedto expose the end of said rivet,-and controllable means adapted to exertpressure on said downpressor whereby said washer is forced against saidshoe.

3. In a rubber tire-shoe riveting machine in combination, an anviladapted to occupy the interior of a pneumatic rubber tire shoe andsupport a rivet through the walls of said shoe also adapted to receivethe sharp end of a rivet-hole punch, a downpressor adapted to bear on awasher around said rivet and on said shoe and further adapted to exposethe end of said rivet, and controllable pressure means whereby saiddepressor can force said washer against said shoe.

4. In a rubber tire-shoe riveting machine in combination, ariveting-machine frame. an anvil adapted to occupy the interior of apneumaticrubber tire shoe also adapted to support a rivet through thewalls of said shoe and hingedly connected to said frame, an arm adaptedto support said shoe and rigidly connected to said anvil, means adaptedto retain said arm in a desired position in rotation on said hinge, adown pressor adapted to bear on a rivet washer around said rivet and onsaid shoe also adapted to expose the end of said rivet, and

controllable pressure means whereby said dlelapressorcan force saidwasher against said s 0e.

5. In a rubber tire-shoe riveting machine in combination, a machineframe, an anvil adapted to occupy the interior of a pneumatic rubbertire shoe having a hard-metal surface area adapted to support a rivetthrough a tire shoe when being upset also having a soft-metal surfacearea adapted to receive the sharp end of a rivet-hole punch and hingedlyconnected to said frame, an arm rigidly fastened to said anvil adaptedto support a tire shoe and releasably attachable to a curved rodconcentric with said hinge and fastened to said frame, a downpressorreciprocal in hearings on said frame adapted to bear on a washer aroundsaid rivet while exposing the end of. said rivet, a fulcrumed foot leverpivotedto said downpressor adapted to depress the same to bear on saidwasher, and a spring adapted to react between said frame and saiddownpressor whereby said downpressor may be removed from said washer.

RALPH O. TURNER. V EDWARD T. ALSTON. Y

